diff --git a/wp-includes/kses.php b/wp-includes/kses.php
index c95b017..6c7d8b7 100644
--- a/wp-includes/kses.php
+++ b/wp-includes/kses.php
@@ -1747,6 +1747,7 @@ function safecss_filter_attr( $css, $deprecated = '' ) {
 		'text-decoration',
 		'text-indent',
 		'text-align',
+		'text-transform',
 
 		'height',
 		'min-height',